undertow before version 2.0.23.Final is vulnerable to an information leak issue. Web apps may have their directory structures predicted through requests without trailing slashes via the api.
https://security.netapp.com/advisory/ntap-20220210-0016/
https://github.com/undertow-io/undertow/pull/794
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10184
https://access.redhat.com/errata/RHSA-2020:0727
https://access.redhat.com/errata/RHSA-2019:3050
https://access.redhat.com/errata/RHSA-2019:3046
https://access.redhat.com/errata/RHSA-2019:3045
https://access.redhat.com/errata/RHSA-2019:3044
https://access.redhat.com/errata/RHSA-2019:2998
https://access.redhat.com/errata/RHSA-2019:2938
https://access.redhat.com/errata/RHSA-2019:2937